162 results on '"Marion SA"'
Search Results
2. DNA methylation at individual CpG-sites of EPB41L3, HTERT and FAM19A4 are useful for detection of cervical high-grade squamous intraepithelial lesions (HSIL) or worse: Analysis of individual CpG-sites outperforms averaging
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Monica Molano, Dorothy A. Machalek, Samuel Phillips, Grace Tan, Suzanne M. Garland, David Hawkes, Prisha Balgovind, Reza Haqshenas, Steve G. Badman, John Bolnga, Josephine Gabuzzi, Zure Kombati, Gloria M. Munnull, Julia ML. Brotherton, Marion Saville, John M. Kaldor, Pamela J. Toliman, Andrew J. Vallely, and Gerald L. Murray
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DNA methylation ,Cervical cancer ,Human papillomavirus ,Diagnostic test ,Epigenetics ,Molecular diagnostics ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Global methylation analysis of gene promoters is promising for detection of high-grade squamous intraepithelial lesions or worse (HSIL+) in high-risk human papillomavirus (hrHPV)-positive women. However, diagnostic performance of methylation data at individual CpG-sites is limited. We explored methylation for predicting HSIL+ in self- and clinician-collected samples from Papua New Guinea.Methylation of EPB41L3 (1–6 CpG-sites), hTERT (1–10 CpG-sites) and FAM19A4 (1–5 CpG-sites) was assessed through pyrosequencing from 44 HPV+ samples (4 cancers, 19 HSIL, 4 low-grade squamous intraepithelial lesions (LSIL), 17 normal). New primers were designed for FAM19A4 directed to the first exon region not explored previously.In clinician-collected samples, methylation at CpG-sites 4 and 5 of EPB41L3 were the best HSIL predictors (AUC >0.83) and CpG-site 4 for cancer (0.925). Combination of EPB41L3 sites 2/4 plus FAM19A4 site 1 were the best HSIL+ markers [100% sensitivity, 63.2% specificity].Methylation at CpG-site 5 of FAM19A4 was the best HSIL predictor (0.67) in self-collected samples, and CpG-sites 1 and 3 of FAM19A4 for cancer (0.77). Combined, FAM19A4 site 1 plus HPV 16/18 detection yielded sensitivity of 82.6% and specificity of 61.9%.In conclusion, methylation at individual CpG-sites of EPB41L3 and FAM19A4 outperformed global analysis and improved HSIL+ detection, warranting further investigation.
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- 2024
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3. Association between antidepressant use and delirium in older adults: an analysis of the World Health Organization’s global pharmacovigilance database
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Elise-Marie Minoc, Cédric Villain, Soumia Benbrika, Basile Chrétien, Pablo Descatoire, Marie Heraudeau, Marion Sassier, Mélissa Pierre, Olivier Martinaud, Charles Dolladille, and Véronique Lelong-Boulouard
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Antidepressants ,Delirium ,Older adults ,Geriatrics ,RC952-954.6 - Abstract
Abstract Background Psychoactive drugs frequently cause delirium adverse events in older adults. However, few data on the relationship between antidepressants and delirium are available. Here, we investigated the association between antidepressant prescription and pharmacovigilance reports of delirium in older adults. Methods Using the World Health Organization’s VigiBase® global pharmacovigilance database from 1967 to 2022, we performed a disproportionality analysis in order to probe the putative associations between each antidepressant class (non-selective monoamine reuptake inhibitors (NSMRIs), selective serotonin reuptake inhibitors (SSRIs), serotonin-norepinephrine reuptake inhibitors (SNRIs), monoamine oxidase inhibitors (MAOIs), alpha-2-adrenergic receptor antagonists, and other antidepressants) and reports of delirium in people aged 65 or over. We calculated the reporting odds ratios (r-OR) and their 95% confidence interval ([95%CI]) with logistic regression models before and after adjustment for confounding factors. Secondary analyses were performed for each drug and within each class by age group (65-74, and 75 and over). We also studied the reports of concomitant delirium and hyponatremia. Results Our main analysis included 87,524 cases of delirium. After adjustment for confounders, a significant association was found between delirium and all antidepressant classes other than SNRIs. Intraclass disparities were found for the association between the most frequently prescribed antidepressants and reports of delirium. An elevated risk of reports of concomitant delirium and hyponatremia was found for SSRIs (4.46 [4.01-4.96]), SNRIs (1.25 [1.07-1.46]), MAOIs (1.72 [1.41-2.09]), and the “other antidepressants” class (1.47 [1.30-1.65]). Conclusions There was a significant association between reports of delirium and antidepressant classes (other than SNRIs). However, this association varied from one drug to another within a given antidepressant class. Moreover, this association could not always be explained by antidepressant-induced hyponatremia.
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- 2024
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4. Clinical validation of the Roche cobas HPV test on the Roche cobas 5800 system for the purpose of cervical screening
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Nikita Mehta, Marco Ho Ting Keung, Eunice Pineda, Elliott Lynn, Dagnachew Fetene, Alvin Lee, Nicolas Hougardy, Amelie Heinrichs, Hiu Tat Mark Chan, Marc Arbyn, Marion Saville, and David Hawkes
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HPV ,clinical validation ,diagnostic ,cervical screening ,cervical intraepithelial neoplasia ,Microbiology ,QR1-502 - Abstract
ABSTRACT This study assessed the relative clinical sensitivity and specificity, as well as reproducibility, for high-risk HPV types of the Roche cobas HPV test when processed using the Roche cobas 5800 system. The results from this study demonstrate that the cobas HPV test using the cobas 5800 system fulfils the Meijer criteria for use in population-based cervical screening. This clinical validation study also examines the clinical sensitivity and specificity based on partial genotyping, with separate detection of HPV16 and HPV18, compared with the Roche cobas 4800 HPV test, a second-generation standard comparator assay. The cobas HPV test has a relative clinical sensitivity of 1.000, when compared with the cobas 4800 HPV test to detect histologically confirmed CIN2+ lesions in woman aged 30 years or older, with a relative clinical specificity of 0.995. The general intra- and inter-laboratory agreement for the cobas HPV test on the cobas 5800 system for finding a HPV positive result were 99.1% and 99.6%, respectively.IMPORTANCEThis study demonstrates, for the first time, the clinical performance of the Roche cobas HPV test when processed using the new cobas 5800 system [cobas (5800)]. This study shows that the cobas (5800) demonstrates relative clinical sensitivity and specificity, when compared with a standard comparator HPV test, which meets the international HPV test validation requirements. Intra- and inter-laboratory reproducibility also fulfills these criteria. The current study demonstrates that the cobas (5800) can be used for primary HPV-based cervical screening on cervical specimens.
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- 2024
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5. Correlates of intention-to-attend and confirmed cervical screening attendance during the COVID-19 pandemic in Australia: Findings from Compass-PLUS, a prospective cohort study
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Louiza S. Velentzis, Sam Egger, Jo Waller, Chloe J. Jennett, Julia M.L. Brotherton, Megan A. Smith, Deborah Bateson, Caitlin Rogers, Amy Pagotto, Rachel Skinner, Natalie Taylor, Rhiannon Edge, Marion Saville, and Karen Canfell
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Early detection of cancer ,Uterine cervical neoplasms ,Papillomavirus infections ,COVID-19 ,Intention ,Anxiety ,Medicine - Abstract
Objective: The coronavirus pandemic impacted health-seeking behaviour and access to primary care in Australia. We investigated factors associated with intention-to-attend and attendance of cervical screening during the pandemic, mainly in Victoria, Australia. Methods: We used questionnaire and attendance data (Aug 2020-Nov 2022) from Compass-PLUS, a sub-study of the Compass randomized-controlled trial of Human Papillomavirus-based vs cytology-based screening. Data was restricted to the HPV-screening arm for comparability to the national program. We investigated associations overall and for younger (25–39 years) and older (≥40 years) cohorts, between intention-to-attend/attendance, and socio-demographics, anxiety-related scores, and agreement with beliefs about screening during the pandemic (e.g. importance of screening, increased workload, working from home, risk of infection). Results: Among 2,226 participants, positive intention to attend screening was more likely among those with a family history of cancer (p = 0.030) or living outside major cities (p = 0.024). Increased attendance was associated with increasing age (p
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- 2024
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6. From commitments to action: the first global cervical cancer elimination forum
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Maribel Almonte, Andre Michel Ilbawi, Mauricio Maza, Marion Saville, Raul Murillo, Mathilde Forestier, Paul Bloem, Silvana Luciani, and Bente Mikkelsen
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Public aspects of medicine ,RA1-1270 - Published
- 2024
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7. Was kennzeichnet einen Holzbau?
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Marion Sauter
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Architecture ,NA1-9428 ,Geography. Anthropology. Recreation - Abstract
The new online encyclopaedia www.holzbaukultur.ch from the Bern University of Applied Sciences presents Swiss timber buildings across six centuries and shows lineages of development. The wide range of examples initiates a debate about the characteristics of timber buildings. Switzerland is generally associated with craftsmanship and traditional timber buildings in the Alpine region. The attempt to develop timber architecture in the spirit of modernism in the 20th century was not very successful. The proportion of timber in total building volume decreased significantly. In recent decades, Swiss timber construction, which is now highly technologised, has repositioned itself, and architecture and structural planning have come closer together and realised remarkable, pioneering projects. Timber construction is now the subject of urban spaces and must find new forms accordingly. The approaches to these new forms have so far been very different. Answering the question “What characterises timber construction?” therefore appears to be a key to the visibility and success of a forward-looking Swiss timber construction culture.
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- 2024
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8. The downregulation of Kv1 channels in Lgi1−/− mice is accompanied by a profound modification of its interactome and a parallel decrease in Kv2 channels
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Jorge Ramirez-Franco, Kévin Debreux, Marion Sangiardi, Maya Belghazi, Yujin Kim, Suk-Ho Lee, Christian Lévêque, Michael Seagar, and Oussama El Far
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Kv1 channels ,Kv2 channels ,Leucine-rich glioma-inactivated 1 (LGI1) ,Limbic encephalitis ,Autosomal-dominant lateral temporal lobe epilepsy ,Proteomic ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
In animal models of LGI1-dependent autosomal dominant lateral temporal lobe epilepsy, Kv1 channels are downregulated, suggesting their crucial involvement in epileptogenesis. The molecular basis of Kv1 channel-downregulation in LGI1 knock-out mice has not been elucidated and how the absence of this extracellular protein induces an important modification in the expression of Kv1 remains unknown. In this study we analyse by immunofluorescence the modifications in neuronal Kv1.1 and Kv1.2 distribution throughout the hippocampal formation of LGI1 knock-out mice. We show that Kv1 downregulation is not restricted to the axonal compartment, but also takes place in the somatodendritic region and is accompanied by a drastic decrease in Kv2 expression levels. Moreover, we find that the downregulation of these Kv channels is associated with a marked increase in bursting patterns. Finally, mass spectrometry uncovered key modifications in the Kv1 interactome that highlight the epileptogenic implication of Kv1 downregulation in LGI1 knock-out animals.
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- 2024
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9. Performance of CADM1, MAL and miR124-2 methylation as triage markers for early detection of cervical cancer in self-collected and clinician-collected samples: an exploratory observational study in Papua New Guinea
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John Kaldor, Steven G Badman, Josephine Gabuzzi, Suzanne Garland, Julia Brotherton, Monica Molano, Samuel Phillips, David Hawkes, Dorothy A Machalek, Grace Tan, Zure Kombati, Gloria Munnull, Marion Saville, Gerald L Murray, John Bolnga, Andrew John Vallely, Prisha Balgovind, Gholamreza Haqshenas, Alyssa Marie Cornall, and Pamela Josephine Toliman
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Medicine - Abstract
Objective WHO recommends human papillomavirus (HPV) testing for cervical screening, with triage of high-risk HPV (hrHPV) positive women. However, there are limitations to effective triage for low-resource, high-burden settings, such as Papua New Guinea. In this exploratory study, we assessed the performance of host methylation as triage tools for predicting high-grade squamous intraepithelial lesions (HSIL) in self-collected and clinician-collected samples.Design Exploratory observational study.Setting Provincial hospital, same-day cervical screen-and-treat trial, Papua New Guinea.Participants 44 hrHPV+women, with paired self/clinician-collected samples (4 squamous cell carcinomas (SCC), 19 HSIL, 4 low-grade squamous intraepithelial lesions, 17 normal).Primary and secondary outcome measures Methylation levels of CADM1, MAL and miR124-2 analysed by methylation-specific PCRs against the clinical endpoint of HSIL or SCC (HSIL+) measured using liquid-based-cytology/p16-Ki67 stain.Results In clinician-collected samples, MAL and miR124-2 methylation levels were significantly higher with increasing grade of disease (p=0.0046 and p
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- 2024
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10. Practitioners support and intention to adopt universal access to self‐collection in Australia's National Cervical Screening Program
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Nicola Stephanie Creagh, Tessa Saunders, Julia Brotherton, Jane Hocking, Amalia Karahalios, Marion Saville, Megan Smith, and Claire Nightingale
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cervical cancer ,cervical screening ,healthcare providers ,implementation research ,practitioners ,qualitative ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Objective Primary care practitioners are crucial to engaging people in Australia's national cervical screening program. From July 2022, practitioners have been able to offer all screen‐eligible people the choice to collect their own self‐collected sample; an option introduced to increase equity. This study explored how practitioners are intending to incorporate universal access to self‐collection into their clinical care. Methods Semi‐structed interviews with 27 general practitioners, nurses, and practice managers from 10 practices in Victoria, Australia conducted between May and August 2022. Interviews were deductively coded, informed by the Consolidated Framework for Implementation Research. The Diffusion of Innovations theory was used to categorise intention to provide self‐collection. Results Participants were supportive of universal access to self‐collection, citing benefits for screen‐eligible people and that it overcame the limited adaptability of the previous policy. Most participants' practices (n = 7, 70%) had implemented or had plans to offer the option for self‐collection to all. Participants deliberating whether to provide universal access to self‐collection held concerns about the correct performance of the self‐test and the perceived loss of opportunity to perform a pelvic examination. Limited time to change practice‐level processes and competing demands within consultations were anticipated as implementation barriers. Conclusions The extent to which self‐collection can promote equity within the program will be limited without wide‐spread adoption by practitioners. Communication and education that addresses concerns of practitioners, along with targeted implementation support, will be critical to ensuring that self‐collection can increase participation and Australia's progression towards elimination of cervical cancer.
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- 2024
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11. Aux sources d’un style céramique original. Des pots à décor couvrant imprimé ou modelé, une spécificité du territoire sénon au 5e siècle av. notre ère?
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Marion Saurel, David Bardel, Francesca Di Napoli, and Jean-Marc Séguier
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pottery ,decoration ,technics ,impressed ,iron age ,paris basin ,culture ,senones ,Archaeology ,CC1-960 - Abstract
At the sources of an original pottery style. Pots with covering impressed and modelled decoration – a specificity of the Senones territory in the 5th century BC? The paper is focused on impressed or modelled covering decorations well represented on pottery in the heart of the Paris Basin during the Second Iron Age. After a phase of emergence in the western Hallstattian province, a concentration of these decorations can be highlighted in the second half of the 5th century in the middle valley of the Seine especially between the confluence of the Seine and the Aube and the confluence of the Seine and the Yonne. Their wider diffusion mainly northwards occurs from the 4th century. The discussion focuses on both the characterization of this phenomenon and its delimitation with a more specific reflection on a possible link at the time of the first flourishing with a ‘Senon’ cultural space.
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- 2024
12. Approaching Breakthrough: Resource-Efficient Micropollutant Removal with MBR-GAC Configuration
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Christian Baresel, Marion Salem, Ross Roberts, Andriy Malovanyy, Heidi Lemström, and Bahare Esfahani
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micropollutants ,membrane bioreactor ,activated carbon ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
The removal of micropollutants from municipal wastewater is crucial to mitigate negative environmental impacts on aquatic ecosystems. However, existing advanced treatment techniques often require extensive fossil resources to achieve the targeted removal of a broad range of micropollutants. This study presents the combination of Membrane Bioreactors (MBRs) and subsequent Granular Activated Carbon (GAC) filters as a resource-efficient solution. Based on long-term pilot studies at a municipal WWTP in Stockholm, Sweden, this investigation explores the MBR-GAC configuration as a sustainable alternative for quaternary treatment at WWTPs. Results from over three years demonstrate a high removal efficiency of over 80% for targeted pharmaceuticals and other organic micropollutants, such as per- and polyfluoroalkyl substances (PFASs), from the WWTP inlet to the outlet. The synergy between MBR and GAC technologies provides this high removal efficiency with considerably lower resource consumption and cost compared to traditional GAC installations. No breakthrough of micropollutants has been observed to date indicating even better resource efficiency than presented in this paper.
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- 2024
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13. Protocol for the formative phase of a trial (SHE-CAN) to test co-designed implementation strategies for HPV-based cervical screening among vulnerable women in two diverse settings in India
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Anu Mary Oommen, Partha Basu, Anne George Cherian, Eric Zomawia, Ravikumar Manoharan, Ruby Angeline Pricilla, Vidhya Viswanathan, Brian Oldenburg, Sujha Subramanian, David Hawkes, Marion Saville, Julia M. L. Brotherton, and on behalf of the SHE-CAN collaborators
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HPV ,Cervical ,Screening ,Co-design ,Implementation ,India ,Medicine (General) ,R5-920 - Abstract
Abstract Background In view of the WHO’s call for the elimination of cervical cancer as a public health problem, and current low screening coverage, Indian policy makers need evidence on how to effectively implement cervical screening programmes, ensuring equity in access. Our study will follow the INSPIRE implementation framework to co-design and test HPV-based screening approaches in two states of India with different health system organisation, based on understanding the status of screening as currently implemented, readiness and challenges to transition to HPV-based screening, and preferences of key stakeholders. Here, we describe our protocol for the formative phase of the study (SHE-CAN). Methods The study population includes women from vulnerable populations, defined as residents of tribal areas, rural villages, and urban slums, in the states of Mizoram and Tamil Nadu. The baseline assessment will use mixed methods research, with desktop reviews, qualitative studies, and surveys. A capacity assessment survey of screening and treatment facilities will be done, followed by interviews with healthcare providers, programme managers, and community health workers. Interviews will be conducted with previously screened women and focus group discussions with under and never-screened women and community members. Stakeholder workshops will be held in each state to co-design the approaches to delivering HPV-based screening among 30–49-year-old women. Discussion The quality and outcomes of existing screening services, readiness to transition to HPV-based screening, challenges in providing and participating in the cervical cancer care continuum, and acceptability of screening and treatment approaches will be examined. The knowledge gained about the current system, as well as recognition of actions to be taken, will inform a stakeholder workshop to co-design and evaluate implementation approaches for HPV-based screening through a cluster randomised implementation trial.
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- 2023
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14. Differences in birch tar composition are explained by adhesive function in the central European Iron Age.
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Tabea J Koch, Marion Saurel, Hervé Bocquillon, Didier F Pisani, Lola Bonnabel, Aimée Little, Rebecca Stacey, Maxime Rageot, and Martine Regert
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Medicine ,Science - Abstract
Birch bark tar is the most widely documented adhesive in prehistoric Europe. More recent periods attest to a diversification in terms of the materials used as adhesives and their application. Some studies have shown that conifer resins and beeswax were added to produce compound adhesives. For the Iron Age, no comparative large-scale studies have been conducted to provide a wider perspective on adhesive technologies. To address this issue, we identify adhesive substances from the Iron Age in north-eastern France. We applied organic residue analysis to 65 samples from 16 archaeological sites. This included residues adhering to ceramics, from vessel surface coatings, repaired ceramics, vessel contents, and adhesive lumps. Our findings show that, even during the Iron Age in north-eastern France, birch bark tar is one of the best-preserved adhesive substances, used for at least 400 years. To a lesser extent, Pinaceae resin and beeswax were also identified. Through statistical analyses, we show that molecular composition differs in samples, correlating with adhesive function. This has implications for our understanding of birch bark tar production, processing and mode of use during the Iron Age in France and beyond.
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- 2024
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15. The behaviour of metals in deep fluids of NE Iceland
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Marion Saby, Vincent van Hinsberg, Daniele L. Pinti, Kim Berlo, Bjarni Gautason, Ásgerður Sigurðardóttir, Kevin Brown, and Océane Rocher
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Medicine ,Science - Abstract
Abstract In this contribution, we present some of the first data on the elemental signature of deep crustal fluids in a basalt-hosted, low-chloride magmatic-hydrothermal system. Down-hole fluid samples (850–1600 m) from wells in the Theistareykir and Krafla geothermal fields in the Northern Volcanic Zone of Iceland were combined with well-head samples of condensed vapor, cuttings of altered rock, and fresh basalt (being some of the first concentration data for volatile and semi-volatile elements (Sb, Tl, Bi, Cd and As) for this area of Iceland). Results show that the deep fluids are relatively enriched in base metals and (semi)-volatile metals (in particular Te, Hg, Re and Tl) compared to local basalt. We interpret this enrichment in volatile metals to reflect a significant element input from magma degassing. Boiling of this deep fluid results in a well-head fluid composition that is significantly depleted in most elements. This well-head fluid has a distinct elemental signature, including a depletion in Sb that is mirrored in the altered rocks, and a depletion in the base metals that shows their selective sequestration in scale minerals, likely sulphides. As expected, the element content and patterns in surface fluids can thus not be interpreted to directly reflect that of the deep reservoir fluid. The behaviour of elements in Theistareykir and Krafla fluids is consistent, and largely agrees with similar data obtained for the Reykjanes geothermal system in SW Iceland. We therefore posit that our results are representative for this geological setting and indicate a significant magmatic degassing cation input to deep fluids, variably modified by water–rock interaction.
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- 2022
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16. Infections associated with clozapine: a pharmacovigilance study using VigiBase®
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Basile Chrétien, Perrine Brazo, Angélique Da Silva, Marion Sassier, Charles Dolladille, Véronique Lelong-Boulouard, Joachim Alexandre, and Sophie Fedrizzi
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clozapine ,infection ,overdose ,interaction ,pharmacovigilance ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Introduction: Clozapine is primarily reserved for treatment-resistant schizophrenia due to safety concerns associated with its use. Infections have been reported with clozapine, which may lead to elevated serum levels of the drug. However, the existing literature on this topic is limited. Therefore, we conducted a study using VigiBase® to investigate the potential over-reporting of infections associated with clozapine, to explore the presence of dose-dependency, and to investigate the underlying mechanism.Methods: Disproportionality analyses were performed using VigiBase to assess the association between clozapine and all types of infections, the association between clozapine-associated infections and neutropenia, the association between clozapine-associated infections and agranulocytosis, the dose–effect relationship between clozapine and infections, and the interaction between clozapine and the main strong CYP450 inhibitors using reports carried out until 11 April 2023.Results: A statistically significant signal of infections was observed with clozapine, as indicated by an information component of 0.43 [95% CI: (0.41–0.45)]. The most commonly reported infections were respiratory and gastrointestinal in nature. Neutropenia showed weaker association with clozapine-associated reports of infections compared to other clozapine-associated reports [X2 (1, N = 204,073) = 454; p < 0.005], while agranulocytosis demonstrated a stronger association with clozapine-associated reports of infections [X2 (1, N = 204,073) = 56; p < 0.005]. No evidence of dose-dependency was observed. Among the 17 tested CYP inhibitors, significant drug–drug interactions were found with clarithromycin, metronidazole, valproic acid, lansoprazole, omeprazole, amiodarone, and esomeprazole.Discussion: Our study revealed a significant safety signal between clozapine use and infections, predominantly respiratory and gastrointestinal infections. The co-administration of clozapine with valproic acid or proton pump inhibitors may potentially contribute to an increased risk of infection. Further vigilance is warranted in clinical practice, and consideration of therapeutic drug monitoring of clozapine in cases involving concomitant use of these drugs or in the presence of infections may be beneficial.
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- 2023
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17. A Model for Empowering Rural Solutions for Cervical Cancer Prevention (He Tapu Te Whare Tangata): Protocol for a Cluster Randomized Crossover Trial
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Beverley Lawton, Evelyn Jane MacDonald, Francesca Storey, Jo-Ann Stanton, Anna Adcock, Melanie Gibson, Varsha Parag, Ngaire Kereru Sparkes, Bobby Kaimoana, Frances King, Marion Terry, Huti Watson, Matthew Bennett, Charles Seymour Lambert, Stacie Geller, Isitokia Paasi, Merilyn Hibma, Peter Sykes, David Hawkes, and Marion Saville
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Medicine ,Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
BackgroundMāori are the Indigenous people of Aotearoa (New Zealand). Despite global acceptance that cervical cancer is almost entirely preventable through vaccination and screening, wāhine Māori (Māori women) are more likely to have cervical cancer and 2.5 times more likely to die from it than non-Māori women. Rural Māori residents diagnosed with cervical cancer have worse outcomes than urban residents. Living in rural Aotearoa means experiencing barriers to appropriate and timely health care, resulting from distance, the lack of community resourcing, and low prioritization of rural needs by the health system and government. These barriers are compounded by the current screening processes and referral pathways that create delays at each step. Screening for high-risk human papillomavirus (hrHPV) and point-of-care (POC) testing are scientific advances used globally to prevent cervical cancer. ObjectiveThis study aims to compare acceptability, feasibility, timeliness, referral to, and attendance for colposcopy following hrHPV detection between a community-controlled pathway and standard care. MethodsThis is a cluster randomized crossover trial, with 2 primary care practices (study sites) as clusters. Each site was randomized to implement either pathway 1 or 2, with crossover occurring at 15 months. Pathway 1 (community-controlled pathway) comprises HPV self-testing, 1-hour POC results, face-to-face information, support, and immediate referral to colposcopy for women with a positive test result. Pathway 2 (standard care) comprises HPV self-testing, laboratory analysis, usual results giving, information, support, and standard referral pathways for women with a positive test result. The primary outcome is the proportion of women with hrHPV-positive results having a colposcopy within 20 working days of the HPV test (national performance indicator). Qualitative research will analyze successes and challenges of both pathways from the perspectives of governance groups, clinical staff, women, and their family. This information will directly inform the new National Cervical Screening Program. ResultsIn the first 15-month period, 743 eligible HPV self-tests were performed: 370 in pathway 1 with POC testing and 373 in pathway 2 with laboratory testing. The positivity rate for hrHPV was 7.3% (54/743). Data collection for the second period, qualitative interviews, and analyses are ongoing. ConclusionsThis Māori-centered study combines quantitative and qualitative research to compare 2 clinical pathways from detection of hrHPV to colposcopy. This protocol draws on rural community practices strengths, successfully engaging Māori from a whānau ora (family wellness) approach including kanohi ki te kanohi (face-to-face), kaiāwhina (nonclinical community health workers), and multiple venues for interventions. It will inform the theory and practice of rural models of the use of innovative technology, addressing Māori cervical cancer inequities and facilitating Māori wellness. The findings are anticipated to be applicable to other Indigenous and rural people in high-income countries. Trial RegistrationAustralian New Zealand Clinical Trials Registry (ANZCTR) ACTRN12621000553875; https://anzctr.org.au/Trial/Registration/TrialReview.aspx?ACTRN=12621000553875 International Registered Report Identifier (IRRID)DERR1-10.2196/51643
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- 2023
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18. Protocol to expand and CRISPR-Cas9 genomic edit murine MAIT cells for subsequent in vivo studies
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Anastasia du Halgouet, Aurélie Darbois, Aurélia Alphonse, Thomas Yvorra, Ludovic Colombeau, Raphaël Rodriguez, Olivier Lantz, and Marion Salou
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Cell culture ,Immunology ,CRISPR ,Science (General) ,Q1-390 - Abstract
Summary: Generating knockout mice for target molecules in specific T cell populations, without subset-specific promoters, is time-consuming and costly. Here, we describe steps for enriching mucosal-associated invariant T cells from the thymus, expanding them in vitro and performing a CRISPR-Cas9 knockout. We then detail procedure for injecting the knockout cells into wounded Cd3ε−/− mice and characterizing them in the skin.For complete details on the use and execution of this protocol, please refer to du Halgouet et al. (2023).1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.
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- 2023
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19. Clear-sky control of anvils in response to increased CO2 or surface warming or volcanic eruptions
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Marion Saint-Lu, Sandrine Bony, and Jean-Louis Dufresne
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Environmental sciences ,GE1-350 ,Meteorology. Climatology ,QC851-999 - Abstract
Abstract Anvil clouds produced by deep convection cover extensive areas of the tropics, and their response to external perturbations matters for the Earth’s climate sensitivity. It has been suggested that variations in the height and spatial extent of these clouds can be understood from basic physical arguments related to the conservation of mass and energy in the clear-sky areas of the tropics. Based on satellite observations, meteorological reanalyses, and climate model simulations, we show that these arguments can be used to interpret the response of anvil cloud fraction to a range of perturbations in the current climate and under climate change. This includes the response to interannual and long-term surface temperature changes, to the direct effect of carbon dioxide, and the decrease of anvil cloud fraction after explosive volcanic eruptions. Therefore, the control of tropical anvils by clear-sky radiative cooling and static stability in the upper troposphere can explain a large diversity of the responses of anvil cloud fraction to natural and anthropogenic perturbations. These findings should also be considered when assessing the impacts of geo-engineering techniques.
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- 2022
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20. The Implementation of a Primary HPV Self-Testing Cervical Screening Program in Malaysia through Program ROSE—Lessons Learnt and Moving Forward
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Yin Ling Woo, Su Pei Khoo, Patti Gravitt, David Hawkes, Reena Rajasuriar, and Marion Saville
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self-sampling ,cervical screening ,HPV testing ,cervical cancer elimination ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Program ROSE (removing obstacles to cervical screening) is a primary HPV-based cervical screening program that incorporates self-sampling and digital technology, ensuring that women are linked to care. It was developed based on the principles of design thinking in the context of Malaysia. The program illustrates the importance of collaborative partnerships and addressing the multi-faceted barriers from policy changes, and infrastructure readiness to the implementation of a radically new cervical screening program in communities. The paradigm shift in cervical cancer requires a monumental and concerted effort in educating both the healthcare providers and the general public. In this short review, we highlight how Pilot Project ROSE incorporated evidence-based tools that rapidly scaled up to Program ROSE. These ideas and solutions can be adapted and adopted by other countries. Notwithstanding the impact of COVID-19, it is incumbent on countries to pave the road towards the elimination of cervical cancer with pre-existing footpaths.
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- 2022
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21. Bilateral Keloid Formation after Otoplasty in the Presence of Prolonged Mask Wearing
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Cosima C. Hoch, Paul F. Funk, Katharina Storck, MD, Marion San Nicoló, MD, and Christian Jacobi, MD
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Surgery ,RD1-811 - Abstract
Summary:. Prominent ears are the most frequently observed congenital deformity of the head and neck. Various techniques have been proposed for their aesthetic correction. Typically, surgical treatment for protruding ears involves a combination of suture, cutting, and scoring techniques. Herein, we present the clinical case of an 11-year-old child who developed bilateral keloid formations 12 months after otoplasty. Keloids and hypertrophic scars can result from extensive retroauricular skin excisions that do not allow for tension-free wound closure. In addition, skin tension and friction on immature surgical scars are common risk factors for keloid formation. To comply with school guidelines aimed at reducing the transmission of SARS-CoV-2, the patient has consistently worn FFP2 masks with ear loops positioned behind the concha. Although masks play a critical role in preventing the spread of infectious diseases, they can lead to friction in the postauricular area. In light of the presented case, it is important to examine potential cofactors that may contribute to keloid formation after otoplasty, as well as suggest a strategy to safeguard the retroauricular scar.
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- 2023
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22. Exploring monitoring strategies for population surveillance of HPV vaccine impact using primary HPV screening
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Louiza S. Velentzis, David Hawkes, Michael Caruana, Julia ML. Brotherton, Megan A. Smith, Lara Roeske, Khurram A. Karim, Suzanne M. Garland, C. David Wrede, Jeffery Tan, Cosette Wheeler, Philip E. Castle, Marion Saville, and Karen Canfell
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HPV-Based screening ,Cobas 4800 ,Linear array ,Surveillance ,HPV vaccination ,Prevalence ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Australia's cervical screening program transitioned from cytology to HPV-testing with genotyping for HPV16/18 in Dec’2017. We investigated whether program data could be used to monitor HPV vaccination program impact (commenced in 2007) on HPV16/18 prevalence and compared estimates with pre-vaccination benchmark prevalence. Pre-vaccination samples (2005–2008) (n = 1933; WHINURS), from 25 to 64-year-old women had been previously analysed with Linear Array (LA). Post-vaccination samples (2013-2014) (n = 2989; Compass pilot), from 25 to 64-year-old women, were analysed by cobas 4800 (cobas), and by LA for historical comparability. Age standardised pre-vaccination HPV16/18 prevalence was 4.85% (95%CI:3.81–5.89) by LA; post-vaccination estimates were 1.67% (95%CI:1.21–2.13%) by LA, 1.49% (95%CI:1.05–1.93%) by cobas, and 1.63% (95%CI:1.17–2.08%) for cobas and LA testing of non-16/18 cobas positives (cobas/LA). Age-standardised pre-vaccination oncogenic HPV prevalence was 15.70% (95%CI:13.79–17.60%) by LA; post-vaccination estimates were 9.06% (95%CI:8.02–10.09%) by LA, 8.47% (95%CI:7.47–9.47%) by cobas and cobas/LA. Standardised rate ratios between post-vs. pre-vaccination rates were significantly different for HPV16/18, non-16/18 HPV and oncogenic HPV: 0.34 (95%CI:0.23–0.50), 0.68 (95%CI:0.55–0.84) and 0.58 (95%CI:0.48–0.69), respectively. Additional strategies (LA for all cobas positives; combined cobas and LA results on all samples) had similar results. If a single method is applied consistently, it will provide important data on relative changes in HPV prevalence following vaccination.
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- 2023
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23. Presence of specific SARS-COV2 antibodies in hemodialysis patients and their caregivers after the first wave of COVID-19
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Thomas Robert, Guillaume Lano, Noémie Resseguier, Mickaël Bobot, Dammar Bouchouareb, Stéphane Burtey, Xavier de Lamballerie, Jean Dhorne, Bertrand Dussol, Ariane Duval, Julien Faraut, Toscane Fourié, Philippe Giaime, Mourad Hallah, Dominique Jaubert, Océane Jéhel, Tristan Legris, Stéphane Liotatis, Valérie Moal, Laetitia Ninove, Nathalie Pedinielli, Marion Pelletier, Manon Romeu-Giannoli, Mariela Saba, Marion Sallée, Laurent Samson, Adriana Saveanu, Violaine Scarfoglière, Pascale Sebahoun, Romain Vial, Clarissa Von Kotze, Philippe Brunet, Gaëtan Lebrun, Stanislas Bataille, and Noémie Jourde-Chiche
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Medicine ,Science - Abstract
Abstract Hemodialysis (HD) patients are at risk for severe COVID-19 and cannot comply with social distancing. SARS-COV2 seroprevalence in French patients and caregivers after the first wave of COVID-19 is unknown. SeroCOVIDial is a prospective study conducted between June and December 2020. SARS-COV2 seroprevalence was evaluated by a rapid serological test (BIOSYNEX) in HD patients and caregivers, and the presence or not of anti-SARS-COV2 neutralizing or non-neutralizing antibodies in patients was also determined by ELISA and seroneutralization. In June 2020, 451 HD patients and 238 caregivers were included. Overall SARS-COV2 seroprevalence was 8.4% (patients) and 6.7% (caregivers), and was 87.1% (patients) and 90.0% (caregivers) in participants with a previously documented SARS-COV2 infection. Overall seroprevalence reached 13.8% (patients) and 12.6% (caregivers) following the second epidemic wave. During the follow-up, 38 (8.4%) patients died (9 of COVID-19). Among the 44 (10.6%) patients who became infected, only two were seropositive at M0. The levels of anti-SARS-COV2 antibodies decreased over time in patients and caregivers. The BIOSYNEX test showed 82.9% sensitivity and 97.7% specificity. Prevalence of anti-SARS-COV2 antibodies was low in HD patients and caregivers after the first epidemic wave but rose after the second wave. A rapid serological test showed good performances and could be useful for future monitoring of anti-SARS-COV2 antibodies.
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- 2022
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24. International surveillance study in acute spinal cord injury confirms viability of multinational clinical trials
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Lucie Bourguignon, Bobo Tong, Fred Geisler, Martin Schubert, Frank Röhrich, Marion Saur, Norbert Weidner, Rüdiger Rupp, Yorck-Bernhard B. Kalke, Rainer Abel, Doris Maier, Lukas Grassner, Harvinder S. Chhabra, Thomas Liebscher, Jacquelyn J. Cragg, EMSCI study group, John Kramer, Armin Curt, and Catherine R. Jutzeler
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Spinal cord injury ,Surveillance study ,Neurological recovery ,Functional recovery ,Aging ,Epidemiological shift ,Medicine - Abstract
Abstract Background The epidemiological international landscape of traumatic spinal cord injury (SCI) has evolved over the last decades along with given inherent differences in acute care and rehabilitation across countries and jurisdictions. However, to what extent these differences may influence neurological and functional recovery as well as the integrity of international trials is unclear. The latter also relates to historical clinical data that are exploited to inform clinical trial design and as potential comparative data. Methods Epidemiological and clinical data of individuals with traumatic and ischemic SCI enrolled in the European Multi-Center Study about Spinal Cord Injury (EMSCI) were analyzed. Mixed-effect models were employed to account for the longitudinal nature of the data, efficiently handle missing data, and adjust for covariates. The primary outcomes comprised demographics/injury characteristics and standard scores to quantify neurological (i.e., motor and sensory scores examined according to the International Standards for the Neurological Classification of Spinal Cord Injury) and functional recovery (walking function). We externally validated our findings leveraging data from a completed North American landmark clinical trial. Results A total of 4601 patients with acute SCI were included. Over the course of 20 years, the ratio of male to female patients remained stable at 3:1, while the distribution of age at injury significantly shifted from unimodal (2001/02) to bimodal distribution (2019). The proportional distribution of injury severities and levels remained stable with the largest percentages of motor complete injuries. Both, the rate and pattern of neurological and functional recovery, remained unchanged throughout the surveillance period despite the increasing age at injury. The findings related to recovery profiles were confirmed by an external validation cohort (n=791). Lastly, we built an open-access and online surveillance platform (“Neurosurveillance”) to interactively exploit the study results and beyond. Conclusions Despite some epidemiological changes and considerable advances in clinical management and rehabilitation, the neurological and functional recovery following SCI has remained stable over the last two decades. Our study, including a newly created open-access and online surveillance tool, constitutes an unparalleled resource to inform clinical practice and implementation of forthcoming clinical trials targeting neural repair and plasticity in acute spinal cord injury.
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- 2022
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25. 2009-2021 : regards sur l’évolution des usages des médias sociaux dans la sphère scientifique et le monde de la culture scientifique en France
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Loïc Bommersbach and Marion Sabourdy
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Twitter ,social media ,scientific culture ,scientific institution ,YouTube ,Social Sciences - Abstract
Written by two scientific communication professionals, with complementary backgrounds, one in scientific institutions and the other in a scientific culture organization, and enriched with testimonies, this article proposes a review of the evolution of the use of social media in the scientific sphere and the field of scientific culture in France over the last twelve years. Between the initial enthusiasm, then a certain weariness linked to the rise of mistrust towards science and the progression of online hatred, this article proposes some leads in order to arrive at the beginnings of a hybrid functioning, between institutional actors, authors and the general public.
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- 2021
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26. Te Ara Waiora-Implementing human papillomavirus (HPV) primary testing to prevent cervical cancer in Aotearoa New Zealand: A protocol for a non-inferiority trial.
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Melanie Gibson-Helm, Tania Slater, Evelyn J MacDonald, Kendall Stevenson, Anna Adcock, Stacie Geller, Varsha Parag, Charles Lambert, Matthew Bennett, Merilyn Hibma, Peter Sykes, Marion Saville, David Hawkes, Jo-Ann Stanton, Mary-Ann Clueard, Grahame Jelley, and Bev Lawton
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Medicine ,Science - Abstract
BackgroundCervical cancer is caused by high-risk types of human papillomavirus (HPV). Testing for high-risk HPV is a more sensitive screening method than cervical cytology for detecting cervical changes that may lead to cancer. Consistent with recent evidence of efficacy and acceptability, Aotearoa New Zealand plans to introduce HPV testing as the primary approach to screening, replacing cervical cytology, from mid-2023. Any equitable cervical screening programme must be effective across a diverse population, including women that the current programme fails to reach, particularly Māori and those in rural areas. Currently, we do not know the best model for implementing an equitable HPV self-testing screening programme.MethodsThis implementation trial aims to assess whether a universal offer of HPV self-testing (offered to all people eligible for cervical screening) achieves non-inferior screening coverage (equal) to a universal offer of cervical cytology alone (the present programme). The study population is all people aged from 24.5 to 70 years due for cervical screening in a 12-month period (including those whose screening is overdue or who have never had screening). A range of quantitative and qualitative secondary outcomes will be explored, including barriers and facilitators across screening and diagnostic pathways. This study takes place in Te Tai Tokerau/Northland which covers a diverse range of urban and rural areas and has a large Indigenous Māori population. A total of fourteen practices will be involved. Seven practices will offer HPV self-testing universally to approximately 2800 women and will be compared to seven practices providing routine clinical care (offer of cervical cytology) to an approximately equal number of women.DiscussionThis trial will answer important questions about how to implement an equitable, high-quality, effective national programme offering HPV self-testing as the primary screening method for cervical cancer prevention.Trial registrationProspectively registered with the Australian New Zealand Clinical Trials Registry 07/12/2021: ACTRN12621001675819.
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- 2023
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27. Management of Chlamydia Cases in Australia (MoCCA): protocol for a non-randomised implementation and feasibility trial
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Rebecca Guy, Marcus Y Chen, Basil Donovan, Jane S Hocking, Natalie Carvalho, Christopher Fairley, Claudia Estcourt, Meredith Temple-Smith, Jane Tomnay, Julie Simpson, David Regan, David Hawkes, Lena Sanci, Jane L Goller, Jacqueline Coombe, Helen Bittleston, Marion Saville, and Lara Roeske
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Medicine - Abstract
Introduction The sexually transmitted infection chlamydia can cause significant complications, particularly among people with female reproductive organs. Optimal management includes timely and appropriate treatment, notifying and treating sexual partners, timely retesting for reinfection and detecting complications including pelvic inflammatory disease (PID). In Australia, mainstream primary care (general practice) is where most chlamydia infections are diagnosed, making it a key setting for optimising chlamydia management. High reinfection and low retesting rates suggest partner notification and retesting are not uniformly provided. The Management of Chlamydia Cases in Australia (MoCCA) study seeks to address gaps in chlamydia management in Australian general practice through implementing interventions shown to improve chlamydia management in specialist services. MoCCA will focus on improving retesting, partner management (including patient-delivered partner therapy) and PID diagnosis.Methods and analysis MoCCA is a non-randomised implementation and feasibility trial aiming to determine how best to implement interventions to support general practice in delivering best practice chlamydia management. Our method is guided by the Consolidated Framework for Implementation Research and the Normalisation Process Theory. MoCCA interventions include a website, flow charts, fact sheets, mailed specimen kits and autofills to streamline chlamydia consultation documentation. We aim to recruit 20 general practices across three Australian states (Victoria, New South Wales, Queensland) through which we will implement the interventions over 12–18 months. Mixed methods involving qualitative and quantitative data collection and analyses (observation, interviews, surveys) from staff and patients will be undertaken to explore our intervention implementation, acceptability and uptake. Deidentified general practice and laboratory data will be used to measure pre-post chlamydia testing, retesting, reinfection and PID rates, and to estimate MoCCA intervention costs. Our findings will guide scale-up plans for Australian general practice.Ethics and dissemination Ethics approval was obtained from The University of Melbourne Human Research Ethics Committee (Ethics ID: 22665). Findings will be disseminated via conference presentations, peer-reviewed publications and study reports.
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- 2022
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28. APPINetwork: an R package for building and computational analysis of protein–protein interaction networks
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Simon Gosset, Annie Glatigny, Mélina Gallopin, Zhou Yi, Marion Salé, and Marie-Hélène Mucchielli-Giorgi
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Network clustering ,Protein–protein interaction ,Network ,Protein complex intermediaries ,Medicine ,Biology (General) ,QH301-705.5 - Abstract
Background Protein–protein interactions (PPIs) are essential to almost every process in a cell. Analysis of PPI networks gives insights into the functional relationships among proteins and may reveal important hub proteins and sub-networks corresponding to functional modules. Several good tools have been developed for PPI network analysis but they have certain limitations. Most tools are suited for studying PPI in only a small number of model species, and do not allow second-order networks to be built, or offer relevant functions for their analysis. To overcome these limitations, we have developed APPINetwork (Analysis of Protein–protein Interaction Networks). The aim was to produce a generic and user-friendly package for building and analyzing a PPI network involving proteins of interest from any species as long they are stored in a database. Methods APPINetwork is an open-source R package. It can be downloaded and installed on the collaborative development platform GitLab (https://forgemia.inra.fr/GNet/appinetwork). A graphical user interface facilitates its use. Graphical windows, buttons, and scroll bars allow the user to select or enter an organism name, choose data files and network parameters or methods dedicated to network analysis. All functions are implemented in R, except for the script identifying all proteins involved in the same biological process (developed in C) and the scripts formatting the BioGRID data file and generating the IDs correspondence file (implemented in Python 3). PPI information comes from private resources or different public databases (such as IntAct, BioGRID, and iRefIndex). The package can be deployed on Linux and macOS operating systems (OS). Deployment on Windows is possible but it requires the prior installation of Rtools and Python 3. Results APPINetwork allows the user to build a PPI network from selected public databases and add their own PPI data. In this network, the proteins have unique identifiers resulting from the standardization of the different identifiers specific to each database. In addition to the construction of the first-order network, APPINetwork offers the possibility of building a second-order network centered on the proteins of interest (proteins known for their role in the biological process studied or subunits of a complex protein) and provides the number and type of experiments that have highlighted each PPI, as well as references to articles containing experimental evidence. Conclusion More than a tool for PPI network building, APPINetwork enables the analysis of the resultant network, by searching either for the community of proteins involved in the same biological process or for the assembly intermediates of a protein complex. Results of these analyses are provided in easily exportable files. Examples files and a user manual describing each step of the process come with the package.
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- 2022
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29. Exploring beyond the limit: How comparative stochastic performance affects retesting outcomes in six commercial SARS CoV-2 nucleic acid amplification tests
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Hiu Tat Chan, Marco H.T. Keung, Ivy Nguyen, Ellen L.O. Ip, Su M. Chew, Danielle Siler, Marion Saville, and David Hawkes
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SARS-CoV-2 ,Nucleic acid amplification tests ,Comparative sensitivity ,Stochastic performance ,Limit of detection ,False positive ,Infectious and parasitic diseases ,RC109-216 - Abstract
Objectives: To examine the comparative stochasticity profile of six commercial SARS-CoV-2 nucleic acid amplification tests (NAATs) and how this may affect retesting paradigms. Methods: Commercial quality control (QC) material was serially diluted in viral transport media to create a panel covering 10–10,000 copies/ml. The panel was tested across six commercial NAATs. A subset of high cycle threshold results was retested on a rapid PCR assay to simulate retesting protocols commonly used to discriminate false positives. Results: Performance beyond the LOD differed among assays, with three types of stochasticity profiles observed. The ability of the rapid PCR assay to reproduce a true weak positive specimen was restricted to its own stochastic performance at the corresponding viral concentration. Conclusion: Stochastic performance of various NAATs overlap across low viral concentrations and affect retesting outcomes. Relying on retesting alone to discriminate false positives risk missing true positives even when a more sensitive assay is deployed for confirmatory testing.
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- 2022
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30. Preparing for a community-based agriculture-to-nutrition trial in rural Malawi: formative research to assess feasibility and inform design and implementation decisions
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Gabriella Chiutsi-Phiri, Alexander A. Kalimbira, Leonard Banda, Patson C. Nalivata, Marion Sanuka, Zione Kalumikiza, Limbanazo Matandika, Joseph Mfutso-Bengo, Elizabeth Allen, Elaine Ferguson, Joanna Sturgess, Martin R. Broadley, Simon Langley-Evans, Kate Millar, Dawd Gashu, and Edward J. M. Joy
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Biofortification ,Community-based trials ,Formative research ,Community sensitisation ,Medicine (General) ,R5-920 - Abstract
Abstract Background This study reports findings from formative research conducted to assess the feasibility and inform the design and implementation of the Addressing Hidden Hunger with Agronomy (AHHA) trial. The AHHA trial was a randomised, controlled trial conducted in rural Malawi, in which participants were given maize flour biofortified with selenium or control flour not biofortified with selenium for a period of 10 weeks, after which blood samples were taken to measure selenium status. Methods Formative research was conducted in villages near to the AHHA trial study site 1 year before the planned intervention. A short questionnaire with adult women (n = 50), focus group discussions with male (n groups = 3) and female (n groups = 3) community members, and in-depth key informant interviews (n = 7) were conducted to understand community practices and perceptions. Findings Meals were typically cooked and eaten at home in this community, while participants reported that maize flour would be less readily sold than maize grain – important considerations for the design of the trial. Regarding intervention delivery, we identified potential concerns around effects on fertility, links between blood sampling and witchcraft, and the potential for social stigma if community members considered participants lazy for receiving free flour. Participants reported that involvement of the Malawi government partners including health extension workers would increase trust. Interpretation Following the formative research, the AHHA trial appeared feasible. However, community sensitisation would be essential to address potential fears and concerns; effective sensitisation would support recruitment and treatment adherence, and would protect the safety and wellbeing of participants and researchers. People in positions of authority and trust including village headmen, religious leaders, health and agriculture extension workers, and community care groups should be involved in community sensitisation.
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- 2021
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31. Adaptive optics enables multimode 3D super-resolution microscopy via remote focusing
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Navikas Vytautas, Descloux Adrien C., Grussmayer Kristin S., Marion Sanjin, and Radenovic Aleksandra
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adaptive optics ,astigmatism-based single molecule localization microscopy ,3d imaging ,remote focusing ,single-molecule localization microscopy (smlm) ,super-resolution optical fluctuation imaging (sofi) ,Physics ,QC1-999 - Abstract
A variety of modern super-resolution microscopy methods provide researchers with previously inconceivable biological sample imaging opportunities at a molecular resolution. All of these techniques excel at imaging samples that are close to the coverslip, however imaging at large depths remains a challenge due to aberrations caused by the sample, diminishing the resolution of the microscope. Originating in astro-imaging, the adaptive optics (AO) approach for wavefront shaping using a deformable mirror is gaining momentum in modern microscopy as a convenient approach for wavefront control. AO has the ability not only to correct aberrations but also enables engineering of the PSF shape, allowing localization of the emitter axial position over several microns. In this study, we demonstrate remote focusing as another AO benefit for super-resolution microscopy. We show the ability to record volumetric data (45 × 45 × 10 µm), while keeping the sample axially stabilized using a standard widefield setup with an adaptive optics addon. We processed the data with single-molecule localization routines and/or computed spatiotemporal correlations, demonstrating subdiffraction resolution.
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- 2021
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32. Plant and Animal Protein Intakes Largely Explain the Nutritional Quality and Health Value of Diets Higher in Plants: A Path Analysis in French Adults
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Elie Perraud, Juhui Wang, Marion Salomé, Jean-François Huneau, Nathanaël Lapidus, and François Mariotti
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plant-based diet ,path analyses ,protein ,diet quality ,nutrient ,Nutrition. Foods and food supply ,TX341-641 - Abstract
Diets higher in plants are associated with lower risks of chronic diseases. However, animal foods, which are rich in protein, are also rich in some important minerals and vitamins. Using data from a representative survey in France (INCA3, n = 1,125), we used path analyses as a mediation-like approach to decipher the importance of plant and animal proteins in the relationship between the plant-based diet index (PDI) and diet quality. We used three types of diet quality scores, namely, nutrient security, positive nutrient adequacy, and long-term mortality risk of four diet-related diseases (i.e., coronary heart disease, stroke, type 2 diabetes, and colorectal cancer). We identified positive and negative mediations, i.e., changes in plant/animal protein intake that are associated with changes in PDI, and favor or limit the association with the diet quality score. The PDI was positively associated with the risk of long-term mortality but not significantly with nutrient adequacy or nutrient security. A positive mediation by plant protein was found for all diet quality scores (specific indirect effects (SIEs) ranging from 0.04 to 0.10 SD). Conversely, the association between PDI and nutrient adequacy (but not nutrient security) was negatively mediated by animal protein intake (SIE: −0.06 SD). In further detailed models, the association between PDI and diet quality was mainly positively mediated by protein foods from the fruit-vegetables-legumes group (0.01 SD for the nutrient security and 0.02 SD for the nutrient adequacy) and whole grains (0.02 SD for the nutrient adequacy). Our data suggest that the positive impact of plant-based diets on diet quality is largely driven by higher intakes of plant protein foods, especially from fruits-vegetables-legumes and whole grains. Conversely, lower animal protein intake tends to limit the positive impact of plant-based diets on overall positive nutrient adequacy but not security. Protein sources appear critical to healthy plant-based diets.
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- 2022
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33. Novel role of UHRF1 in the epigenetic repression of the latent HIV-1
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Roxane Verdikt, Maryam Bendoumou, Sophie Bouchat, Lorena Nestola, Alexander O. Pasternak, Gilles Darcis, Véronique Avettand-Fenoel, Caroline Vanhulle, Amina Aït-Ammar, Marion Santangelo, Estelle Plant, Valentin Le Douce, Nadège Delacourt, Aurelija Cicilionytė, Coca Necsoi, Francis Corazza, Caroline Pereira Bittencourt Passaes, Christian Schwartz, Martin Bizet, François Fuks, Asier Sáez-Cirión, Christine Rouzioux, Stéphane De Wit, Ben Berkhout, Virginie Gautier, Olivier Rohr, and Carine Van Lint
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HIV-1 latency ,Reactivation ,UHRF1 ,Epigenetics ,EGCG ,Medicine ,Medicine (General) ,R5-920 - Abstract
Summary: Background: The multiplicity, heterogeneity, and dynamic nature of human immunodeficiency virus type-1 (HIV-1) latency mechanisms are reflected in the current lack of functional cure for HIV-1. Accordingly, all classes of latency-reversing agents (LRAs) have been reported to present variable ex vivo potencies. Here, we investigated the molecular mechanisms underlying the potency variability of one LRA: the DNA methylation inhibitor 5-aza-2’-deoxycytidine (5-AzadC). Methods: We employed epigenetic interrogation methods (electrophoretic mobility shift assays, chromatin immunoprecipitation, Infinium array) in complementary HIV-1 infection models (latently-infected T-cell line models, primary CD4+ T-cell models and ex vivo cultures of PBMCs from HIV+ individuals). Extracellular staining of cell surface receptors and intracellular metabolic activity were measured in drug-treated cells. HIV-1 expression in reactivation studies was explored by combining the measures of capsid p24Gag protein, green fluorescence protein signal, intracellular and extracellular viral RNA and viral DNA. Findings: We uncovered specific demethylation CpG signatures induced by 5-AzadC in the HIV-1 promoter. By analyzing the binding modalities to these CpG, we revealed the recruitment of the epigenetic integrator Ubiquitin-like with PHD and RING finger domain 1 (UHRF1) to the HIV-1 promoter. We showed that UHRF1 redundantly binds to the HIV-1 promoter with different binding modalities where DNA methylation was either non-essential, essential or enhancing UHRF1 binding. We further demonstrated the role of UHRF1 in the epigenetic repression of the latent viral promoter by a concerted control of DNA and histone methylations. Interpretation: A better understanding of the molecular mechanisms of HIV-1 latency allows for the development of innovative antiviral strategies. As a proof-of-concept, we showed that pharmacological inhibition of UHRF1 in ex vivo HIV+ patient cell cultures resulted in potent viral reactivation from latency. Together, we identify UHRF1 as a novel actor in HIV-1 epigenetic silencing and highlight that it constitutes a new molecular target for HIV-1 cure strategies. Funding: Funding was provided by the Belgian National Fund for Scientific Research (F.R.S.-FNRS, Belgium), the « Fondation Roi Baudouin », the NEAT (European AIDS Treatment Network) program, the Internationale Brachet Stiftung, ViiV Healthcare, the Télévie, the Walloon Region (« Fonds de Maturation »), « Les Amis des Instituts Pasteur à Bruxelles, asbl », the University of Brussels (Action de Recherche Concertée ULB grant), the Marie Skodowska Curie COFUND action European Union's Horizon 2020 research and innovation program under grant agreement No 691119-EU4HIVCURE-H2020-MSCA-RISE-2015, the French Agency for Research on AIDS and Viral Hepatitis (ANRS), the Sidaction and the “Alsace contre le Cancer” Foundation. This work is supported by 1UM1AI164562-01, co-funded by National Heart, Lung and Blood Institute, National Institute of Diabetes and Digestive and Kidney Diseases, National Institute of Neurological Disorders and Stroke, National Institute on Drug Abuse and the National Institute of Allergy and Infectious Diseases.
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- 2022
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34. Gas hydrate versus seabed morphology offshore Lebu (Chilean margin)
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Iván Vargas-Cordero, Umberta Tinivella, Lucía Villar-Muñoz, Joaquim P. Bento, Carolina Cárcamo, Diego López-Acevedo, Francisco Fernandoy, Alessandra Rivero, and Marion San Juan
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Medicine ,Science - Abstract
Abstract Gas-hydrate occurrences along the Chilean margin have been widely documented, but the processes associated with fluid escapes caused by the dissociation of gas hydrates are still unknown. We report a seabed morphology growth related to fluid migration offshore Lebu associated with mud cones by analysing oxygen and deuterium stable water isotopes in pore water, bathymetric, biological and sedimentological data. A relief was observed at − 127 m water depth with five peaks. Enrichment values of δ18O (0.0–1.8‰) and δD (0.0–5.6‰) evidenced past hydrate melting. The orientation of the relief could be associated with faults and fractures, which constitute pathways for fluid migration. The benthic foraminifera observed can be associated with cold seep areas. We model that the mud cones correspond to mud growing processes related to past gas-hydrate dissociation. The integration of (i) the seismic data analysis performed in the surrounding area, (ii) the orientation of our studied relief, (iii) the infaunal foraminifera observed, (iv) the grain size and (v) the total organic matter and isotope values revealed that this area was formerly characterised by the presence of gas hydrates. Hence, this part of the Chilean margin represents a suitable area for investigating fluid-migration processes.
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- 2020
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35. Uptake and acceptability of human papillomavirus self-sampling in rural and remote aboriginal communities: evaluation of a nurse-led community engagement model
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Tegan Dutton, Jo Marjoram, Shellie Burgess, Laurinne Montgomery, Anne Vail, Nichole Callan, Sunil Jacob, David Hawkes, Marion Saville, and Jannine Bailey
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Aboriginal women ,Cervical screening ,Program evaluation ,Aboriginal Women’s business ,Cancer ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Aboriginal women experience disproportionately higher rates of cervical cancer mortality yet are less likely to participate in screening for early detection. This study sought to determine whether a community-based HPV self-sampling service model can effectively recruit never-screened and under-screened Aboriginal women to participate in cervical cancer screening; assess the clinical outcomes; and explore the acceptability of the model from the perspective of the participants. Methods Aboriginal women aged 25–69 years of age were recruited from eight rural and remote communities in New South Wales, Australia to participate in HPV self-sampling via a community-based service model. Outcome measures were: number of women screened by HPV self-sampling, their prior cervical screening status (under-screened or never-screened), clinical outcomes and participation in follow-up pathways of care, and satisfaction with the service model. Results In total, 215 women conducted a HPV self-sampling test and 200 evaluation surveys were completed. One-fifth of participants (n = 46) were never-screened and one-third (n = 69) were under-screened. Many were unsure of their screening status. Nine women were HPV 16/18 positive and eight had completed all follow up by the conclusion of the study. A further 30 women tested positive for a high risk type other than HPV 16/18 (HPV other), of which 14 had completed follow up at the conclusion of the study. Satisfaction with the HPV self-sampling kit, the process of self-sampling and the service model was high (> 92% satisfied on all items). Many women had difficulty understanding their official HPV results and placed high importance on the nurse explaining it to them. Conclusions A community-based service model that respects Aboriginal Women’s Business can effectively recruit under-screened and never-screened Aboriginal women to complete cervical cancer screening. Furthermore, this service model supports them to complete recommended follow-up care and engage with their local existing health services.
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- 2020
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36. Short- and long-term renal outcomes following severe rhabdomyolysis: a French multicenter retrospective study of 387 patients
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Nelly Candela, Stein Silva, Bernard Georges, Claire Cartery, Thomas Robert, Julie Moussi-Frances, Eric Rondeau, Jean-Michel Rebibou, Laurence Lavayssiere, Julie Belliere, Thierry Krummel, Céline Lebas, Olivier Cointault, Marion Sallee, Stanislas Faguer, and on behalf of the French Intensive Care Renal Network (F.I.R.N)
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Rhabdomyolysis ,Acute kidney injury ,CKD progression ,Outcomes ,Myoglobin ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Abstract
Abstract Background Rhabdomyolysis is a life-threatening disease that can lead to severe hyperkalemia, acute kidney injury (AKI) and hypovolemic shock. The predictive factors of AKI and acute to chronic kidney disease (CKD) transition remain poorly described. Methods This multicenter retrospective study enrolled 387 patients with severe rhabdomyolysis (CPK > 5000 U/L). Primary end-point was the development of severe AKI, defined as stage 2 or 3 of KDIGO classification. Secondary end-points included the incidence of AKI to CKD transition. Results Among the 387 patients, 315 (81.4%) developed AKI, including 171 (44.1%) with stage 3 AKI and 103 (26.6%) requiring RRT. Stage 2–3 AKI was strongly correlated with serum phosphate, potassium and bicarbonate at admission, as well as myoglobin over 8000 U/L and the need for mechanical ventilation. 42 patients (10.8%) died before day 28. In the 80 patients with available eGFR values both before and 3 months after the rhabdomyolysis, the decrease in eGFR (greater than 20 mL/min/1.73 m2 in 23 patients; 28.8%) was correlated to the severity of the AKI and serum myoglobin levels > 8000 U/L at admission. Conclusions Severe rhabdomyolysis leads to AKI in most patients admitted to an ICU. Mechanical ventilation and severity of the rhabdomyolysis, including myoglobin level, are associated with the risk of stage 2–3 AKI. The long-term renal decline is correlated to serum myoglobin at admission.
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- 2020
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37. The experience of under-screened and never-screened participants using clinician-supported self-collection cervical screening within the Australian National Cervical Screening Program
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Nicola S Creagh, Claire Zammit, Julia ML Brotherton, Marion Saville, Tracey McDermott, Claire Nightingale, and Margaret Kelaher
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Medicine - Abstract
Background: Australia has had significant successes in the prevention of cervical cancer. However, there is considerable scope for improving screening participation. In December 2017, Australia shifted from cytology to a human papillomavirus–based screening program as part of the renewed National Cervical Screening Program. This provided the opportunity to introduce a clinician-supported self-collection cervical screening pathway, which allows screening participants aged 30 years or more and who are under-screened or never-screened to screen via a self-collected human papillomavirus test. Objective: This study aimed to explore screening participant experiences of a clinician-supported self-collection cervical screening pathway. Methods: Interviews (n = 45) were conducted with participants who had used the clinician-supported self-collection cervical screening pathway in the Australian National Cervical Screening Program between December 2017 and April 2019. Interviews were analyzed using template analysis. Results: Under-screened and never-screened participants reported a variety of interrelated barriers to cervical screening due to the nature of the test. For these participants, self-collection was a preferable way to perform screening as it overcame various barriers, was easy to use and promoted a sense of empowerment. Participants reported that the role of their practitioner was influential in their decision to undertake cervical screening, and that the support and information provided was a key factor in their experiences of the self-collection pathway. Conclusion: Findings support the use of a clinician-supported model of care, as an alternative screening modality in Australia’s National Cervical Screening Program. As more countries consider the move from a cytology to human papillomavirus–based cervical screening program, this model may assist in greater engagement of under-screened participants.
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- 2022
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38. A Role for the V0 Sector of the V-ATPase in Neuroexocytosis: Exogenous V0d Blocks Complexin and SNARE Interactions with V0c
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Christian Lévêque, Yves Maulet, Qili Wang, Marion Rame, Léa Rodriguez, Sumiko Mochida, Marion Sangiardi, Fahamoe Youssouf, Cécile Iborra, Michael Seagar, Nicolas Vitale, and Oussama El Far
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V-ATPase ,V0d ,V0c ,SNARE ,complexin ,neurotransmission ,Cytology ,QH573-671 - Abstract
V-ATPase is an important factor in synaptic vesicle acidification and is implicated in synaptic transmission. Rotation in the extra-membranous V1 sector drives proton transfer through the membrane-embedded multi-subunit V0 sector of the V-ATPase. Intra-vesicular protons are then used to drive neurotransmitter uptake by synaptic vesicles. V0a and V0c, two membrane subunits of the V0 sector, have been shown to interact with SNARE proteins, and their photo-inactivation rapidly impairs synaptic transmission. V0d, a soluble subunit of the V0 sector strongly interacts with its membrane-embedded subunits and is crucial for the canonic proton transfer activity of the V-ATPase. Our investigations show that the loop 1.2 of V0c interacts with complexin, a major partner of the SNARE machinery and that V0d1 binding to V0c inhibits this interaction, as well as V0c association with SNARE complex. The injection of recombinant V0d1 in rat superior cervical ganglion neurons rapidly reduced neurotransmission. In chromaffin cells, V0d1 overexpression and V0c silencing modified in a comparable manner several parameters of unitary exocytotic events. Our data suggest that V0c subunit promotes exocytosis via interactions with complexin and SNAREs and that this activity can be antagonized by exogenous V0d.
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- 2023
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39. Systematic Comparison of Uremic Toxin Removal Using Different Hemodialysis Modes: A Single-Center Crossover Prospective Observational Study
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Ariane Duval-Sabatier, Stephane Burtey, Marion Pelletier, Manon Laforet, Laetitia Dou, Marion Sallee, Anne-Marie Lorec, Hafssa Knidiri, Floriane Darbon, Yvon Berland, and Philippe Brunet
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dialysis ,hemodiafiltration ,uremic toxin removal ,protein bound solutes ,dialysis membrane ,Biology (General) ,QH301-705.5 - Abstract
Many hypotheses could explain the mortality decrease observed using hemodiafiltration, such as reduction of intradialytic hypotension and more efficient toxin removal. We led a systematic analysis of representative uremic toxin removal with hemodialysis (HD), online postdilution hemodiafiltration (postHDF) and online predilution hemodiafiltration (preHDF), in a single-center crossover and prospective observational study. The primary outcome was the reduction ratio of uremic toxins of the three categories defined by the Eutox group. Twenty-six patients were treated by those three techniques of extra renal epuration. Mean Kt/Vurea was not different between the treatment methods. Mean reduction ratio of beta2microglobulin was significantly higher for both HDF treatments than for HD (p < 0.001). Myoglobin, kappa, and lambda free light chain reduction ratio was significantly different between the modes: 37.75 ± 11.95%, 45.31 ± 11% and 61.22 ± 10.56%/57.21 ± 12.5%, 63.53 ± 7.93%, and 68.40 ± 11.79%/29.12 ± 8.44%, 34.73 ± 9.01%, and 45.55 ± 12.31% HD, preHDF, and postHDF, respectively (p < 0.001). Mean protein-bound solutes reduction ratio was not different between the different treatments except for PCS with a higher reduction ratio during HDF treatments. Mean albumin loss was always less than 2 g. HDF improved removal of middle molecules but had no effect on indoles concentration without any difference between synthetic dialysis membranes.
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- 2023
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40. Stability Study of Parenteral N-Acetylcysteine, and Chemical Inhibition of Its Dimerization
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Nicolas Primas, Guillaume Lano, Damien Brun, Christophe Curti, Marion Sallée, Emmanuelle Sampol-Manos, Edouard Lamy, Charleric Bornet, Stéphane Burtey, and Patrice Vanelle
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N-acetylcysteine ,stability study ,parenteral administration ,Medicine ,Pharmacy and materia medica ,RS1-441 - Abstract
Parenteral N-acetylcysteine has a wide variety of clinical applications, but its use can be limited by a poor chemical stability. We managed to control parenteral N-acetylcysteine stability, and to study the influence of additives on the decrease of N-acetylcysteine degradation. First, an HPLC-UV dosing method of N-acetylcysteine and its main degradation product, a dimer, was validated and the stability without additive was studied. Then, the influence of several additives (ascorbic acid, sodium edetate, tocopherol and zinc) and of temperature on N-acetylcysteine dimerization was evaluated. Finally, the influence of zinc gluconate at different concentrations (administrable to patients) was investigated. Zinc gluconate at 62.5 µg·mL−1 allows the stabilization of 25 mg·mL−1 N-acetylcysteine solution for at least 8 days when stored at 5 ± 3 °C.
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- 2023
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41. Contributions de la génétique animale à la transition agroécologique des systèmes d’élevage
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Alain DUCOS, Frédéric DOUHARD, Davi SAVIETTO, Marion SAUTIER, Valérie FILLON, Mélanie GUNIA, Rachel RUPP, Carole MORENO-ROMIEUX, Sandrine MIGNON-GRASTEAU, Hélène GILBERT, and Laurence FORTUN-LAMOTHE
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Animal culture ,SF1-1100 ,Aquaculture. Fisheries. Angling ,SH1-691 - Abstract
Les filières et systèmes d’élevage ont considérablement évolué au cours du XXe siècle. La recherche en génétique animale et la mise en place des programmes d’amélioration génétique ont joué un rôle important dans cette évolution. Aujourd’hui, le modèle dominant, caractérisé par une utilisation intensive d’intrants, une très grande spécialisation des systèmes et la recherche de coûts de production toujours plus bas, est remis en cause. Un objectif désormais largement partagé est de contribuer à l’émergence de systèmes alimentaires durables, équitables, sains et respectueux de l’environnement. L’agroécologie est un moyen pour atteindre cet objectif et guider la nécessaire transition des systèmes d’élevage, à laquelle la génétique animale doit contribuer. Des exemples de contributions passées, actuelles et potentielles sont présentés et positionnés selon cinq principes d’agroécologie proposés pour guider l’évolution des systèmes d’élevage. La plupart, telles que la sélection d’animaux résistants à différentes maladies infectieuses ou valorisant de façon plus efficace leur alimentation, correspondent à des niveaux de transition agroécologique faible, dans la mesure où elles ne remettent pas en cause les fondements, les composantes ou la conception générale des systèmes. De nouvelles contributions, visant une transition forte, fondée sur une reconception en profondeur des systèmes d’élevage, sont à développer à l’avenir.
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- 2021
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42. Customized template for occlusal correction in full mouth rehabilitation: A case report
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Tamizhesai Balavadivel, Venkateshwaran Rajendran, Karthik Ramakrishnan, Jeffin Jacob, Marion Sarah Philip, and Nithiyarajan Nambirajan
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acrylic stent ,broadrick flag ,curve of spee ,occlusal plane ,Pharmacy and materia medica ,RS1-441 ,Analytical chemistry ,QD71-142 - Abstract
Reestablishing the occlusal plane involves multidisciplinary approach with extensive restorative procedure to accomplish “equilibration.” Broadrick occlusal plane analyzer (BOPA) provides an easy and practical method to commensurate for curve of Spee and establishing the occlusal plane. Transferring the new occlusal plane from the diagnostic model to patients mouth needs to be precise. To achieve controlled conservative reduction, customized acrylic template was a vital tool used in this case to transfer the exact plane correction achieved by the BOPA.
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- 2020
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43. Melon juice concentrate supplementation in an animal model of obesity: Involvement of relaxin and fatty acid pathways
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Julie Carillon, Marion Saby, Sandy Barial, Anna Sansone, Roberta Scanferlato, Nathalie Gayrard, Anne-Dominique Lajoix, Bernard Jover, Chryssostomos Chatgilialoglu, and Carla Ferreri
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Superoxide dismutase ,Adipose tissue ,Membrane lipidome ,Inflammatory mediators ,Fibrosis ,Lipid remodeling ,Nutrition. Foods and food supply ,TX341-641 - Abstract
Chronic low-grade inflammation and oxidative stress associated with obesity induce molecular changes in extracellular matrix connected to relaxin pathway and fibrosis, the lipidome of various tissues and the level of lipid mediators. Increase of desaturase enzymatic activity and activation of the inflammatory mediator cascades are known to be associated with obesity. Decrease of enzymatic antioxidant defenses is strictly involved. The effects of a 10 days supplementation of encapsulated melon juice concentrate rich in superoxide dismutase were studied in Zucker Fat rats compared with Zucker Lean rats, following relaxin pathways, lipid mediators and fatty acid-based lipidomic analysis in adipose tissue and erythrocytes. Significant ameliorations in obese rats concerned the restored relaxin levels, connected with fibrosis reduction, the reduction of inflammatory mediators and a favorable fatty acid remodeling, with the decrease of unsaturated fatty acids in the lipidome of adipose tissue and erythrocytes becoming closer to the lipidome of normal rats.
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- 2019
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44. Challenges and Resilience in Myanmar’s Urbanization: A Special Issue on Yangon
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Maaike Matelski and Marion Sabrié
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Yangon ,Rangoon ,Myanmar ,Burma ,right to the city ,urban transition ,History of Asia ,DS1-937 ,Social Sciences - Abstract
Many large cities in Southeast Asia have undergone parallel processes of modernization, gentrification and exclusion as a result of economic development. In Yangon, Myanmar’s former capital city and still the main urban centre, this process has accelerated only recently. Since the start of the current political and economic transition period in 2010, opportunities for employment, education and business have been drawing ever larger numbers of people towards Yangon. While the city is emerging as an Asian metropolis, it faces problems of marginalization, congestion, gentrification and its corollary, the growth of informal urban outskirts that contribute to rising inequality rather than inclusive development. The exogenous, non-democratic and top-down urban policy led in an uncoordinated manner by the national, regional and municipal authorities leads to more social injustice and inequalities. Urban planning policies such as conservation heritage are also questioned in terms of the inequalities they are likely to generate. However, the marginalized groups, violently evicted or not, should also get their “right to Yangon”. In order to present the three following articles, this article aims at introducing Yangon’s metropolization and its challenges for the Yangonites, discussing the causes and consequences of these new and exacerbated forms of exclusion.
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- 2019
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45. Yangon 'Emerging Metropolis': Challenges for the Authorities and Resilience of the Yangonites
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Marion Sabrié
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emerging metropolis ,Myanmar ,Burma ,Yangon ,Rangoon ,urban policy ,History of Asia ,DS1-937 ,Social Sciences - Abstract
Since the elections of 2010 and the accelerated economic openness of Myanmar (formerly Burma), changes are taking place in the country. Those metamorphoses are particularly visible in Yangon’s landscape, which remains the economic capital and the national entry door, and major for its inhabitants. Yangon’s population is growing, its suburban areas are expanding, and the limits of its metropolitan area are not well defined yet. As a result of the urban pressure and of the increased influx of people from other regions, as well as foreign investors, the metropolization is disorganized: scattered construction of new skyscrapers, larger malls, destruction of green spaces, gentrification of the Central Business District, etc. Because of the new economic legislation, which has allowed a massive importation of cars, Yangon is also facing many other issues: inadequate road infrastructures, severe traffic congestion, lack of parking spaces, noise and air pollution. Yangon Municipality—the Yangon City Development Committee—assisted by the Japanese International Cooperation Agency, prepared an urban transport plan of Greater Yangon. Since environmental, cultural and social costs seem to be high, to what extent do the Yangonites benefit from the economic openness? Based on data collected by the Myanmar government in the 2014 Census, and years of interviews by the author of local and international actors living in Yangon, this paper analyzes the challenges of the authorities and the resilience of the Yangonites facing the metropolization of Yangon.
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- 2019
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46. Protein/Fiber Index Modulates Uremic Toxin Concentrations in Hemodialysis Patients
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Manon Ebersolt, Tacy Santana Machado, Cecilia Mallmann, Nathalie Mc-Kay, Laetitia Dou, Dammar Bouchouareb, Philippe Brunet, Stéphane Burtey, and Marion Sallée
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chronic kidney disease ,protein fiber index ,uremic toxins ,hemodialysis ,Medicine - Abstract
Background: Indoxyl sulfate (IS) and p-cresyl sulfate (PCS), two uremic toxins (UTs), are associated with increased mortality in patients with chronic kidney disease (CKD). These toxins are produced by the microbiota from the diet and excreted by the kidney. The purpose of this study was to analyze the effect of diet on IS and PCS concentration in hemodialysis (HD) patients. Methods: We performed a prospective monocentric study using a seven-day diet record and determination of serum IS and PCS levels in HD patients. We tested the association between toxin concentrations and nutritional data. Results: A total of 58/75 patients (77%) completed the diet record. Mean caloric intake was 22 ± 9.2 kcal/kg/day. The protein/fiber index was 4.9 ± 1.8. No correlation between IS or PCS concentration and protein/fiber index was highlighted. In the 18 anuric patients (31%) in whom residual renal function could not affect toxin concentrations, IS and PCS concentrations were negatively correlated with fiber intake and positively correlated with the protein/fiber index. In a multivariate analysis, IS serum concentration was positively associated with the protein/fiber index (p = 0.03). Conclusions: A low protein/fiber index is associated with low concentrations of uremic toxins in anuric HD patients. Diets with an increased fiber intake must be tested to determine whether they reduce PCS and IS serum concentrations.
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- 2022
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47. Baseline Glycemic Status and Outcome of Persons with Type 2 Diabetes with COVID-19 Infections
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Marion Sarigumba, Jimmy Aragon, and Ma. Princess Kanapi
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diabetes mellitus ,coronavirus ,Diseases of the endocrine glands. Clinical endocrinology ,RC648-665 - Abstract
Introduction. The coexistence of two global pandemics, COVID-19 and type 2 diabetes mellitus, has been implicated with worse prognosis. The association of diabetes and worse outcome in viral infections stems from the detrimental effect of hyperglycemia to the control of viremia and different components of the host response. This study aimed to describe the epidemiological and clinical characteristics of confirmed COVID-19 patients and establish the association of baseline glycemic status and COVID-19 outcomes among persons with type 2 diabetes. Methodology. A single center, retrospective study among adult persons with type 2 diabetes diagnosed with COVID-19 in Makati Medical Center from March 1 to August 31, 2020. A total of 156 medical records (26%) out of 584 confirmed cases were reviewed. Data were collected on diabetes status, comorbid conditions and laboratory findings. Both Cox proportional hazards models and logistic regression models were fitted. To assess the factors associated with mortality as a dichotomous endpoint (died/survived), binary logistic regression was performed. On the other hand, a time-to-mortality analysis was performed using Cox regression. For the effect estimate, we refer to hazard ratios in the Cox proportional hazards model and odds ratios in the logistic regression models. All analyses were adjusted for age and sex and two models were additionally adjusted for any presence of comorbidity. Results. A total of 156 COVID-19 patients with diabetes were analyzed. Upon admission, 13% were in diabetic ketosis, 4% were in a state of DKA, and 2% had hypoglycemia. About 5%, 33%, 26%, and 36% of patients had mild, moderate, severe, and critical COVID-19, respectively. Between non-survivors and survivors, the latter group were significantly younger in age (p
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- 2021
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48. Safety of immune checkpoint inhibitor rechallenge after discontinuation for grade ≥2 immune-related adverse events in patients with cancer
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Mickaël Martin, Marion Sassier, Marion Allouchery, Thomas Lombard, Franck Rouby, Celia Bertin, Marina Atzenhoffer, Ghada Miremont-Salame, Marie-Christine Perault-Pochat, and Mathieu Puyade
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background Safety of rechallenge of immune checkpoint inhibitor (ICI) after grade ≥2 immune-related adverse events (irAEs) leading to ICI discontinuation remains unclear.Methods All adverse drug reactions involving at least one ICI reported up to December 31, 2019 were extracted from the French pharmacovigilance database. Patients were included if they experienced at least one grade ≥2 irAE resulting in ICI discontinuation, with subsequent ICI rechallenge. The primary outcome was the recurrence of at least one grade ≥2 irAE in these patients after ICI rechallenge.Results We included 180 patients: 61.1% were men (median age of 66 years), 43.9% had melanoma and 78.9% were receiving anti-programmed cell death 1. First ICI discontinuation was related to 191 irAEs. After ICI rechallenge, 38.9% of the patients experienced at least one grade ≥2 irAE. Among them, 70.0% experienced the same irAE, 25.7% a distinct irAE, and 4.3% both the same and a distinct irAE. Lower recurrence rates of irAEs were associated with rechallenge with the same ICI treatment (p=0.02) or first endocrine irAEs (p=0.003). Gastrointestinal irAEs were more likely to recur (p=0.007). The median duration from ICI discontinuation to rechallenge and the severity of the initial irAE did not predict recurrent irAEs after ICI rechallenge (p=0.53 and p=0.40, respectively).Conclusions In this study, 61.1% of the patients who discontinued ICI treatment for grade ≥2 irAEs experienced no recurrent grade ≥2 irAEs after ICI rechallenge. Although ICI rechallenge appears to be safe under close monitoring, it should always be discussed balancing usefulness of rechallenge, patient comorbidities and risk of recurrence of first irAE(s). Due to inherent bias associated with pharmacovigilance studies, further prospective studies are needed to assess risk factors that may influence patient outcomes after ICI rechallenge.
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- 2020
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49. « Vous vous rendez compte les références qu’on a ? Jaurès pardonne-moi ! » : les discours convoqués par Benoît Hamon
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Oliana REVELLES and Marion Sandré
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répétition ,discours politique ,dialogisme ,discours rapporté ,ethos ,Language and Literature - Abstract
Cet article analyse les discours convoqués par Benoît Hamon lors d’un discours à la Bourse du travail de La Seyne-sur-Mer, en février 2018. Ce travail s’inscrit en analyse du discours et s’intéresse aux phénomènes dialogiques : nous distinguons les discours étudiés selon l’instance énonciative convoquée par l’acteur politique. Nos trois catégories d’analyse sont donc : les références au discours de tiers, à son propre discours, et au discours du public. L’objectif est de montrer à la fois comment Benoît Hamon utilise ces différents discours, et comment il les traite dans son propre discours. On verra que souvent les commentaires autour des reprises de discours sont aussi importants que ces reprises elles-mêmes et qu’ensemble ils participent à la construction de l’image de l’acteur politique.
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- 2020
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50. S’approprier la « frontière » et invisibiliser l’immigré dans la fabrique urbaine de Nicosie Sud
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Marion Sabrié
- Subjects
Cyprus ,border ,Nicosia ,urban fabric ,migrants ,Geography (General) ,G1-922 - Abstract
Since the Turkish invasion of 1974, the southern part of the old town of Nicosia, the capital of Cyprus, has been abandoned by its Greek-speaking inhabitants because it recalled this painful past. Therefore, few immigrant communities settled there. Since the opening in 2003 of two crossing points of the Green Line in the heart of the old town, the latter is again tamed by the Greek Cypriots. The transition from the front (and the latent conflict) to the pacified separation line explains this taking back of the old city center. Based on sixty semi-structured interviews with Nicosians, conducted between 2015 and 2018, this article analyzes how the appeasement of the Cypriot conflict in Nicosia, the construction of peace by the urban coexistence and the ongoing metropolisation of the capital city, accelerated by Cyprus adhesion to the European Union in 2004, push Greek Cypriots to reinvest a for a long time repulsive city center, displacing its disadvantaged immigrant populations towards the peripheries. The different processes mentioned, as well as the "tourism development" around the Buffer zone or "showing conflictuality" (Gœury, 2008), are concomitant with an unconscious strategy of erasure or displacement of the non-Greek speaking groups. If the visible/invisible duality can be applied to the Green Line, it is more complex when it comes to communities. Immigrants are gradually becoming invisible through slow gentrification, while the Greek Cypriots are moving back into the southern old city. Urban reconciliation between the Greek Cypriot and Turkish Cypriot communities is therefore at the expense of the immigrants.
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- 2020
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